EP 3598158 B1 20220622 - RADIO-FREQUENCY COIL FOR MAGNETIC RESONANCE DEVICE
Title (en)
RADIO-FREQUENCY COIL FOR MAGNETIC RESONANCE DEVICE
Title (de)
HOCHFREQUENZSPULE FÜR MAGNETRESONANZVORRICHTUNG
Title (fr)
BOBINE RADIOFRÉQUENCE POUR DISPOSITIF À RÉSONANCE MAGNÉTIQUE
Publication
Application
Priority
- CN 201710191106 A 20170328
- CN 2017118571 W 20171226
Abstract (en)
[origin: EP3598158A1] The present invention relates to a radio-frequency coil for a magnetic resonance device, comprising: antenna units, conductor end ring segments connecting the antenna units, and capacitors. Here, a single antenna unit is curved in a plane parallel to a direction of a static magnetic fieldB<sub>0</sub>(the positive direction of the z axis); the cross sections of all the antenna units in a x-y plane are spaced apart from each other at an angle and distributed symmetrically in a radial array; adjacent antenna units are connected with the end ring segments and the capacitors at two ends; the coil as a whole is an open dome shape surface structure and is sufficiently conformal to the surface of an object to be scanned. Not only one feed port may be used to form a linear coil, but also two feed ports may be used to achieve a quadrature coil. When applied to an object to be scanned which has a dome shape surface, the coil of the present invention can be sufficiently in close proximity to the object to be scanned to excite a relatively homogeneous radio-frequency magnetic field, and has very high sensitivity in quadrature mode, and the signal to noise ratio of the magnetic resonance image obtained thereby is higher than that of a traditional birdcage.
IPC 8 full level
G01R 33/341 (2006.01); G01R 33/34 (2006.01); G01R 33/36 (2006.01)
CPC (source: CN EP US)
G01R 33/34046 (2013.01 - US); G01R 33/34076 (2013.01 - EP); G01R 33/341 (2013.01 - CN EP US); G01R 33/36 (2013.01 - US); G01R 33/3621 (2013.01 - CN); G01R 33/34007 (2013.01 - EP); G01R 33/3678 (2013.01 - EP)
Citation (examination)
US 2009121715 A1 20090514 - GUAN YIPING [US], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3598158 A1 20200122; EP 3598158 A4 20200429; EP 3598158 B1 20220622; CA 3088920 A1 20181004; CA 3088920 C 20230314; CN 108663641 A 20181016; CN 108663641 B 20220104; US 11029376 B2 20210608; US 2020041586 A1 20200206; WO 2018176940 A1 20181004
DOCDB simple family (application)
EP 17903814 A 20171226; CA 3088920 A 20171226; CN 201710191106 A 20170328; CN 2017118571 W 20171226; US 201716499034 A 20171226